@misc{10_21136_CPMF_1920_121354,
     title = {Valn\'a sch\r{u}ze {Jednoty} \v{c}esk\'ych mathematik\r{u} a fysik\r{u}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {159--160},
     year = {1920},
     volume = {49},
     number = {2-3},
     doi = {10.21136/CPMF.1920.121354},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1920.121354/}
}